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The statement i.e. (n+3)^(2) gt 2^(n+3) ...

The statement i.e. `(n+3)^(2) gt 2^(n+3)` is true.

A

For all n

B

For all `n ge 3`

C

For all `n ge 2`

D

No, `n in N`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the inequality \((n+3)^2 > 2^{(n+3)}\), we will analyze the expression step by step. ### Step 1: Understand the inequality We need to determine for which values of \(n\) the inequality \((n+3)^2 > 2^{(n+3)}\) holds true. ### Step 2: Test small values of \(n\) Let's start by testing small integer values for \(n\). #### Test \(n = 1\): \[ LHS: (1 + 3)^2 = 4^2 = 16 \] \[ RHS: 2^{(1 + 3)} = 2^4 = 16 \] Here, \(16 \not> 16\). So, the inequality does not hold for \(n = 1\). #### Test \(n = 2\): \[ LHS: (2 + 3)^2 = 5^2 = 25 \] \[ RHS: 2^{(2 + 3)} = 2^5 = 32 \] Here, \(25 \not> 32\). So, the inequality does not hold for \(n = 2\). #### Test \(n = 3\): \[ LHS: (3 + 3)^2 = 6^2 = 36 \] \[ RHS: 2^{(3 + 3)} = 2^6 = 64 \] Here, \(36 \not> 64\). So, the inequality does not hold for \(n = 3\). #### Test \(n = 4\): \[ LHS: (4 + 3)^2 = 7^2 = 49 \] \[ RHS: 2^{(4 + 3)} = 2^7 = 128 \] Here, \(49 \not> 128\). So, the inequality does not hold for \(n = 4\). ### Step 3: Test larger values of \(n\) #### Test \(n = 5\): \[ LHS: (5 + 3)^2 = 8^2 = 64 \] \[ RHS: 2^{(5 + 3)} = 2^8 = 256 \] Here, \(64 \not> 256\). So, the inequality does not hold for \(n = 5\). #### Test \(n = 6\): \[ LHS: (6 + 3)^2 = 9^2 = 81 \] \[ RHS: 2^{(6 + 3)} = 2^9 = 512 \] Here, \(81 \not> 512\). So, the inequality does not hold for \(n = 6\). ### Step 4: Analyze the trend From the tests above, we see that as \(n\) increases, the left-hand side \((n+3)^2\) grows quadratically, while the right-hand side \(2^{(n+3)}\) grows exponentially. Given that the exponential function grows faster than the quadratic function, we can conclude that: \[ (n+3)^2 < 2^{(n+3)} \quad \text{for all } n \geq 1 \] ### Conclusion The inequality \((n+3)^2 > 2^{(n+3)}\) does not hold for any integer values of \(n\). Therefore, the correct option is that there are no values of \(n\) for which the inequality is true.
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